Question

Look at the table. Make a conjecture about the sum of the first 10 positive even numbers.

Answer 1

I think it's 10 x 11

Answer 2

If te 1st term is a₁ =2, tee 2nd term is a₂ = 2x3, the 3rd term is a₃ = 3x4

then the pattern is :
a(n) = n(n+1)
a(10) 10(11) = 110